hughes



Jan. 11, 1938. F, E, HUGHES 2,104,994

STOVE Filed Oct. 14, 1935 Patented Jan. 11, 1938 STOVE Frederick E.Hughes, Port Loring, Ontario, Canada Application October 14, 1935,Serial No. 44,842

3 Claims.

The principal object of this invention'is to provide an improved firedoor structure for stoves which will greatly facilitate the replenishingof the fire and will eliminate to a great extent the 5 danger incidentto the release of fiying sparks or coals when refueling.

A further object is to obviate the danger of flaring gases and thedischarge of smoke and fumes into the room on the opening of the fire 0door.

The principal features of the invention reside in the novel constructionand arrangement of the stove structure whereby the refueling door, whichis of substantially trough shape, extends '15 the full width of the firebox from side-to-side of the stove to receive a length of cord wood orother fuel in its open position. and to automatically deposit the samewithin the combustion chamber or fire box on the closing of the door andthis door is connected with means for opening the flue to create adirect draft when the door is opened.

The invention further resides in the novel formation and manner ofmounting the door in conjunction with the adjacent lower portion of thestove front whereby a smooth unobstructed path is provided for thepassage of the fuel from the door into the combustion chamber.

Figure 1 is a fragmentary mid-sectional side elevational View of a stoveconstructed in accordance with the present invention.

Figure 2 is a side elevational View of the construction shown in Figure1.

Figure 3 is a front elevational view of the upper fire door portion ofthe stove showing the door closed in one half of the drawing and open inthe other half.

Figure 4 is a fragmentary sectional plan on the line 4 i of Figure 1indicating in chain lines the open position of the door.

Figure 5 is a fragmentary perspective view of a modified form of theinvention in which the fire door is operatively connected with the fiuedamper. Figure 6 is an enlarged elevational view of the damper controldevice.

In the form of the construction shown the sides I and 2 of the stove,which may be of sheet metal, are stepped forwardly at the point 3 in- 0termediate of the height and the forward upper portion is roundedoutwardly in a convex formation 4.

A casting 5 of stepped formation is fitted between the stepped portionsof the side panels I 5 and 2 and is provided with a thickened portion 5below the fire door opening 7, the inner surface of the portion 6 beingsloped downwardly and inwardly to meet the side 5 of the fire box andforming with the surface of the portion 6, a chute which slopescontinuously downward form- 5 ing an unobstructed passage from the doorto the interior of the firebox so that when the door with its charge offuel is closed there will be no possibility of the fuel becoming lodgedand complete discharge thereof into the firebox will be 10 ensured.

A fire door 8 is fitted between the upper edge of the portion 6 and thetop 5 of the stove and is of substantially trough-shaped formationpresenting a concaved inner side i6 which forms 15 a continuation of thesloping inward surface of the portion of the front casting 5. The doorH) is stepped upwardly along the bottom edge at l i on the outward sideforming a downwardly extending part-cylindrical flange on the inwardside, the rounded contour of which rests in the grooved upper portion ofthe section 5 to form a closure from side-to-side of the door opening,while at the same. time permitting the free swinging movement of thedoor. 25

The rounded flange portion of the door is extended outwardly at eitherend beyond the side panels I and 2 of the stove and preferablyjournalled in upstanding lug portions l2 of the casting 5 and the endextremities are provided with 30 bell cranks l3 which are engaged bysprings l4 suitably anchored at l5 to the side panels so that thesprings co-operate with the cranks to hold the door in either open orclosed positions.

End flanges l4 are carried on the concaved side of the door and thesefit snugly adjacent the inner surfaces of the side panels I and 2 toform a substantial closure thereagainst, and they also serve to hold thefuel that is placed within the trough formation of the door when thelatter 4:0 is in open position as indicated in chain lines Figure 1.They are also formed with stop lugs X sliding in the arc-shaped groovesX which hold the door in a horizontal position when open.

When the door is swung outwardly and down- 45 wardly to the openposition as indicated in Figure 1, a length of cord wood or other fuelmay be placed on the door, the opening movement of the door beinglimited by reason of the engagement of the stop X with the upper andouter end of the groove X. The door presents a smooth inner surfacecontinuous with the inner surface of the section 6 of the casting, sothat when it is tilted upwardly the fuel will slide or rollinwardlywithout meeting any obstruction and it continue down over the inward anddownward sloping surface of the portion 6 to, be deposited completelywithin the fire box. Any sparks that will be thrown upwardly will beprevented from' escaping by reason of the simultaneous closing of thedoor, and since the door extends completely across the full width of thefire box, an even distribution of the fuel from end toend of the firebox will be achieved and it is important to note that cordwood of fullfirebox length may be supplied to' the firebox in this way, whereas inpresent stove constructions when refueling through the front, it isnecessary to cut the cordwood in lengths considerably shorter than the.vfirebox or else insert the longer length of wood through an end dooror through the top of the stove, which practice is objectionable anddangerous due to the release of smoke, gases and sparks each time thefuel is replenished.

In the form of the invention shown in Figure 5 a crank member I6 issecured to an axial extension I6 of the doorB' adjacent to the back ofthe stove and is connected by a rod I! to a rocker member 18 mounted ona pivot pin l9 arranged at a suitable place on the backof the stove andthis rocker member is arranged to engage a pin' 20 on a lever 21 alsopivoted on the pin Hi. The lever 2! is connected by a rod 22 tothecranked end of a damper 23 in the smoke flue. When the door 8 isopened the rocker member is operated to open the damper so that gaseswithin the stove will be immediately liberated through the fluepreventing the flashing or puffing of smoke into the room where thestove is located.

The lever 2| is provided with an arm 2 by means of which the damper maybe operated from the side of the stove independent of the door 8, thelever 2| moving independently of the rocker member It.

A door 25 is mounted in the opening of the ash pit 26 beneath the grateand extends the full width between the side Walls 2, the rounded bottomedge 21 of said door being rotatably supported in a groove 28 in theframe. This door is provided with side wings 29 which fit snugly againstthe sides 2 of the stove and form'dusttight joints. 7

What I claim as my invention is:--

1..In a stove of the front refueling type in which a refueling door ishingedyto swing upwardly to discharge a quantity of fuel through thedoor opening into the interior of the stove,

in combination therewith means forming a chute sloping continuouslydownward from the hinge side of the door directly into the fireboxforming a non-obstructed passage'from the door to the combustion zone ofthe firebox whereby lodgement of the fuel between the door and fireboxis prevented, said chute-forming means including a. front portionpresenting an inner surface which forms a smooth unbroken surfacecontinuation of the inner surface of the door when the latter is in itsclosed position.

2. Means as claimed in claim 1 in which the inner surface of said frontportion slopes steeply upward to a horizontal hinge recess in which thehinge side of the door is rotatably sealed, the

rotatably sealed hinge portion of the door being and a chuteportionsloping directly and unobstructedly into said firebox, ahorizontally hinged refueling fire door also extending the full lengthofsaid firebox, and means for maintaining a flush seal between thehinged side of said door and the inner top extremity of said chute fromend to end thereof substantially unaffected by the opening and closingof the door to permit charging of fuel completely and unobstructedlyfrom. the door intothe firebox and prevent dust of sparks from passingbetween the hinge side of the door and the chute.

FREDERICK E. HUGHES.

